Hi,
Please find the patch for introducing vulcan as a cpu name for the
AArch64 port of GCC.
Broadcom's vulcan is an armv8.1-a aarch64 server processor.
Since vulcan is the first armv8.1-a processor to be introduced in
aarch64-cores.def,
I have created a new section in the file for the armv8.1 based processors.
Kindly let me know if that is okay.
Tested the patch with cross aarch64-linux-gnu, bootstrapped native
aarch64-unknown-linux-gnu
and make check (gcc, ld, gas, binutils, gdb).
No new regression failure is added by this patch.
In addition, tested -mcpu=vulcan -mtune=vulcan flags by passing them
via command line.
Also verified that above flags passes armv8.1-a option to assembler(as).
At present we are using schedule & cost model of cortex-a57 but
soon we will be submitting one for vulcan.
Please review the patch.
Ok for trunk?
gcc/ChangeLog:
Virendra Pathak <virendra.pat...@broadcom.com>
* config/aarch64/aarch64-cores.def (vulcan): New core.
* config/aarch64/aarch64-tune.md: Regenerate.
* doc/invoke.texi: Document vulcan as an available option.
with regards,
Virendra Pathak
From be0c77cce98d6dffe7b8d607df25ecb4386a1d34 Mon Sep 17 00:00:00 2001
From: Virendra Pathak <virendra.pat...@broadcom.com>
Date: Mon, 13 Jun 2016 03:18:08 -0700
Subject: [PATCH] [AArch64] Accept vulcan as a cpu name for the AArch64 port of
GCC
---
gcc/config/aarch64/aarch64-cores.def | 4 ++++
gcc/config/aarch64/aarch64-tune.md | 2 +-
gcc/doc/invoke.texi | 4 ++--
3 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/gcc/config/aarch64/aarch64-cores.def
b/gcc/config/aarch64/aarch64-cores.def
index 251a3eb..ced8f94 100644
--- a/gcc/config/aarch64/aarch64-cores.def
+++ b/gcc/config/aarch64/aarch64-cores.def
@@ -49,6 +49,10 @@ AARCH64_CORE("qdf24xx", qdf24xx, cortexa57, 8A,
AARCH64_FL_FOR_ARCH8 | AA
AARCH64_CORE("thunderx", thunderx, thunderx, 8A, AARCH64_FL_FOR_ARCH8 |
AARCH64_FL_CRC | AARCH64_FL_CRYPTO, thunderx, "0x43", "0x0a1")
AARCH64_CORE("xgene1", xgene1, xgene1, 8A, AARCH64_FL_FOR_ARCH8,
xgene1, "0x50", "0x000")
+/* V8.1 Architecture Processors. */
+
+AARCH64_CORE("vulcan", vulcan, cortexa57, 8_1A, AARCH64_FL_FOR_ARCH8_1 |
AARCH64_FL_CRYPTO, cortexa57, "0x42", "0x516")
+
/* V8 big.LITTLE implementations. */
AARCH64_CORE("cortex-a57.cortex-a53", cortexa57cortexa53, cortexa53, 8A,
AARCH64_FL_FOR_ARCH8 | AARCH64_FL_CRC, cortexa57, "0x41", "0xd07.0xd03")
diff --git a/gcc/config/aarch64/aarch64-tune.md
b/gcc/config/aarch64/aarch64-tune.md
index cbc6f48..8c4a0e9 100644
--- a/gcc/config/aarch64/aarch64-tune.md
+++ b/gcc/config/aarch64/aarch64-tune.md
@@ -1,5 +1,5 @@
;; -*- buffer-read-only: t -*-
;; Generated automatically by gentune.sh from aarch64-cores.def
(define_attr "tune"
-
"cortexa35,cortexa53,cortexa57,cortexa72,exynosm1,qdf24xx,thunderx,xgene1,cortexa57cortexa53,cortexa72cortexa53"
+
"cortexa35,cortexa53,cortexa57,cortexa72,exynosm1,qdf24xx,thunderx,xgene1,vulcan,cortexa57cortexa53,cortexa72cortexa53"
(const (symbol_ref "((enum attr_tune) aarch64_tune)")))
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index aa11209..2666592 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -13063,8 +13063,8 @@ Specify the name of the target processor for which GCC
should tune the
performance of the code. Permissible values for this option are:
@samp{generic}, @samp{cortex-a35}, @samp{cortex-a53}, @samp{cortex-a57},
@samp{cortex-a72}, @samp{exynos-m1}, @samp{qdf24xx}, @samp{thunderx},
-@samp{xgene1}, @samp{cortex-a57.cortex-a53}, @samp{cortex-a72.cortex-a53},
-@samp{native}.
+@samp{xgene1}, @samp{vulcan}, @samp{cortex-a57.cortex-a53},
+@samp{cortex-a72.cortex-a53}, @samp{native}.
The values @samp{cortex-a57.cortex-a53}, @samp{cortex-a72.cortex-a53}
specify that GCC should tune for a big.LITTLE system.
--
2.1.0
